Microplastics have officially been found in human blood, lungs, breastmilk, and even placentas.

The claim that microplastics have been officially found in human blood, lungs, breast milk, and placentas is supported by multiple peer-reviewed studies and reputable news reports. Research published in scientific journals has documented microplastic fragments in placental tissue,theguardian.comtheguardian.comMicroplastics found in human breast milk for the first time with studies detecting various types of microplastics in breast milk samples from healthy mothers.

Additionally, microplastics have been identified in human blood for the first time in recent research.pmc.ncbi.nlm.nih.govpmc.ncbi.nlm.nih.govEffect of microplastics deposition on human lung airways: A review with... The presence of microplastics in lung tissue is also supported by reviews summarizing their deposition and potential health impacts. These findings come from direct analysis of human biological samples using established scientific methods.

While the health implications remain under investigation, the detection itself is well-documented and accepted within the scientific community. The claim is thus accurate and reflects current scientific knowledge.